Play of the Day -- Obama gets a wake up call

Late Night host Jimmy Fallon talked about a surprise wake up call President Obama got while he was in Chicago for the NATO Summit, and David Letterman gave his monologue to some of Mitt Romney's most adoring fans. Also, Conan O'Brien discussed the intricacies of the Mexican presidential race and he debuted a new walk.

Today's Must See Moment -- Fast forward to 0:55 to see something bizarre that Afghanistan President Hamid Karzai did at the NATO Summit.